请你根据表格中间的部首
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HI,everyone.ImPeter.Igetupearlyat6:00.ThenIeatbreakfastiseggandmilkIhaveagoodfriend.Hisnameispeter.L
ThreepeopleareinGina'sfamily.TheyareGinaandherparents.Ginalikesfruit,butshedoesn'tlikevegetables.Gin
LastSunday,Iwenttoafarm.Itwasasunnyday.Iwenttherebycar.Ittookmehalfanhour.Ivisitedthefarm.Ipickthest
Ihavethreefriends.TheirnamesareMark,KimandSonia.MarkcomesfromToronto.Now,theweatheriswindythere.Heis
所写内容要涵盖表格所提供给的信息点。
1:20:2672:2:53:50:801再问:还有铜块2的质量和铜块3的体积没求呢..再答:222.51.8再问:3q3q
(1)钩码上升的高度为5cm,绳子自由端移动的距离为20cm,20cm÷5cm=4,即s=4h,所以钩码和动滑轮有四段绳子承担,滑轮组绕法如图所示.(2)∵由四段绳子承担物重,∴F=14(G+G动),
(1)(2)∵由四段绳子承担物重,∴F=(G+G动),即G动=4F﹣G=4×0.6N﹣2N=0.4N(3)∵h=5cm=0.05m,s=20cm=0.2m,∴η===≈83.3%.
(1)查表可知酒精的凝固点是-117℃,沸点是78℃,80℃明显超出了它的沸点78℃,因此是气态;(2)判断用什么材料,关键是要看在实际应用测量时,温度计里面的液体会不会汽化或凝固,通过对比表格里面的
Howstudentsgetstoourschool?Inourschool,moststudentsridethierbikestoschool.Somestudentsalsogotoschool
Noexercises,noanswers.
Hello,mynameisJackSmith.First,IWilltellyousomethingsaboutmyself.Iam12yearsold.Myfavouritehobbyispiay
IhaveagoodfriendnamedAlice.She's13yearsoldnow.HerfavouritesubjectisEnglish,andshehadlearneditfor5yea
MySundayThisSundaymorning,Iwentshoppingwithmysisterandwentswimmingwithmybrother.Intheafternoon,Iclea
Larrylostadog.Itisawhitedog.ItsnameisNono.Itis3yearsold.Itsearsaresmall.Itseyesareblackandround.Itsl
DearJimNowletmetellyouaboutmyschoollife.Thereareforlessonsinthemorning.Thefirstlessonstartsat8:00a.m
求那个队员成绩稳定.可以用期望和方差解决
(1)图中1气管,2肺,3气囊,(2)家鸽体内有气囊,并且体内有许多气囊与肺相通,分布在内脏器官之间,有的还突入到骨的空腔里,鸟类飞翔时,靠气囊的扩张和收缩来协助肺完成呼吸作用.(3)家鸽、蜂鸟为鸟类